Albert e



Jan. 23, 1923, 1,442,795 A. E. COOK ET AL. v VEHlcLE SPEED REDucTloNMEcHANlsM.

Fl LED` JUNE 14, 1918.

Patented dan. 23, 1923.` Y y i' I p .UNITED res PATENT oFFmE.v

ALBERT E. COOK, OF EVANSTON, AND THOMAS VAN T'U-YL, OF KANKAKEE,ILLINOIS;

SAID VAN TUYL ASSIGNOR T SAID COOK.

'VEHICLE SPEEDTREDUCTION MECHANISM.

Application filed June 14, 191.8.v Serial No. 240,101.

To all 'whom t may eoncern: Figure 3 is a detail section on line 8-8 ofBe it known that we, Annnn'r E. Coon and Figure 1.

THOMAS VAN, TUYL, citizens of the United Figure i is an elevational viewf ofl the States, and residents of the city of Evansspeed reductionwheel with the drum cover ton, in the county or Cook and State oi plateremoved. i

Illinois, and of the city of Kankakee, in the Figure 5 is a plan view ofthe geared county of Kankakee and State oi?" Illinois, clutch member ofthe device.

have invented certain. new useful ImyAs shown on the drawingsproveinents in 'a Vehicle Speed-Reduction The reference numeral 8indicates a drivl0 Mechanism; and wefdo hereby declare that ing Shaft oraxle provided on itsouter end the-following is a full, clear, and'exactdewith a housing 9, forming a `part of the scription of the same,ire-terence being hadr Standard equipment, of an automobile.

to the accompanying drawings, and to the The tapered or reducedends ofthe axle 8, numerals or reference -marked thereon, is'designated by thereference numeral 10, which form a part ofthis specification. andextends through the hub of the hous- This invention Vpertains to animproved ing. Keyed or otherwise secured upon the form of a speedreduction unit adapted to tapered end of the rear axle 8, to rotate beremovably attachedV uponthe rear end therewith is a driving clutchmember emn oi a motor driven vehicle, whereby a. drive bracing a collarlor bushing 11, provided from the driving axles 'is y transmitted withintegral teeth 12, at the outer end. through `floating gears'toetractorwheels at Said collar 11, is prevented from sliding on a reduced rate ofspeed. the tapered portion 10, of the axle by means It is also an objectof the invention to of a nut threaded on the end of the axle asconstruct a speed reduction driving mechaclearly shown in Figure 1. Theouter pornism adapted for use upon reapers, tractors tion of the clutchmember comprises a sleeve and other forms of motor driven agriculor tube13, the inner end of which is protural vehicles, whereby the speed ofthe vided with apluraiity of teeth 14, adapted driving Wheels is reducedbelow the speed to 1ntert with the teeth 12, whereby the of the powerdriven shafts of the `vehicle by sleeve 13, is axially aligned with thecollar balanced speed reduction gear mechanisms. 11, and isrotatedth'erewith. to permit a A further Object 0i: ih@ invention is thedrive from the driving` axle 8, to be transoonstruction of adrivingunit, the wheels mitted to a pinion 15,y integrally formed or of whichare driven at a rate of speed below rigidly secured upon the outer kendof the that of 'the driving axles. clutch. sleeve 13. A further objectof the invention is to Engaged around the clutch member to the provide aspeed reduction .,demountable rim inside oi: the pinion `15, and alsoengaged tractor Wheel, y around the hub oi the housing 9, is a sleeveOther and further vimiaortant objects .of 16, of stationary memberprovided with a the invention will be apparent from the displate ,17,integral and at right angles` `to 40 closures in the drawings andspecification. the sleeve 16, and disposed adjacent the The invention(in a preferred form) is open end of the housingv 9. integrallyillustrated inthe drawings and hereinafter formed at rightangles to theVouter portion more fully described. of the' plate 17, is an inwardlydirected On the drawings f flange ring 18, which is disposed around theFigure 1 is a fragmentarysectional view drum portion of the housing 9.and also of a speed reductionwheel embodying the integrallyV formed atright angles yto the principles of this invention. outer margin oi theplate 17, is an outwardly Figure 2 is a detail section on line 7-7directed flange ring, the inner peripheral l of` Figure 1. por'tionoiwhich is .formed to provide an integral internal annular gear if). Thestationary member is provided with a plural` ity of integral inwardlyydirected lugs or brackets 20, to each 0i which is rigidly secured bymeans of a clamp-ing plate 2,1, and bolt 22, one end of a bracer pipe ortube 23,

the other endfo'l` each of said: pipes being similarly secured to oneofthe brackets 20,

lof the stationary member disposedrat the opposite sident thechass1s,\and.iorm1ng a` part ofthe speed reducing nvi'e'chanism..l

The stationary internal gear member 19 `has ay peripheral` retaining 28, `integrally 'formed on the ring flange, thereof. Disposed to theinside off' the 4itlangef28, is a centrally apertured inner or rearclosure plate 29,",which rotatably ifi-ts Varound the stationary memberand has the inner and outer peripheral margins thereof providedr with aplurality of apertures or openingsto permit the,y closure plate to .berigidly se- I"cured'by, means of bolts 30, or othersuitf v able means toclose the innerk end otra drum `or housing 31, both ends of which areopen.

Integrally formed centrally within ythe drum`31,is"a spider 32,lprovided` with plurality of parallelfbearingl or supporting cylinders ortubes 33, Ithe inner endsoff whichiextehdfbeyond the rear walll3t, oi'the spider 32, andy have a portion thereof'v cut away to afl-'ordvperipheral openings 35. "Rotatably disposed withineach of the bearingcylinders 33,' of'thedrum spider is a drivingmember embracing a cylinder(3`,.hav-` ing-'integrally formed" or rigidly secured on the inner endthereofv a gear 37, which proyjects'through-the respective peripheralopening 35, :one of whichis provided in` each" vofthe bearing cyllnders33, to permit said gear to` mesh with thestationary internal.`

annular gear 19, as clearlyshown inFigure Integrally lformed or rigidlysecured on i.

the vouterend" ofl each ofi` theV cylinders 36, 1s agear 38, whichv islarger than the gear 37, andmeshes with the driving pinioni15.

The gears 38, are so l'disposed'that the .inner faces thereof arepositioned adjacent a suitfthe-purpose. The front closurefplateAG, fcent-rally apertured-f andis closed by` means off-aV plate 41, thecentraly ortionoffwhich y able abutment wallf'39, ofithe' drum 31, tolimitthe inward movement vof the double' geared driving members, 'Tohold thedouy ble geared driving members in position with- 1n thedrumspider and prevent an outward sliding movement thereof, an outer orfront closure plate 40, is removably secured over thefopen outer end ofthe drum 31, which is,-

provided with apertures to receive bolts for depressed,as shownin igurey1, for the purpose of, holding they geared clutch member;-`13"15-inengagement with theclutch collarj11. Y

rivets 43, is a tractor wheel, which may be of any desired type, but asshown, com-k` n prises two tread rings orflanges 44, pars Y allel to oneanother and connected together by means of tread blades 45, throughwhich the mounting bolts 43, engage. i

" The operation is as tollowsa- The axle 8, yrotates the pinionedclutches 11?13, throughl the inter-meshin`g clutch` teethg12-f-1d,thereby rotating the driving `pini'onsl, at `the same rate of speed asthat of the aXle 8. It vwill be noted that the driv- -inggpin-ion 15,is-notmprovided` with bearings compensating drive members rotates saidgears38, and the cylinders y36, ata rateofy speedfwhich is'less thanthatofthefaxle,

said decrease inthe speed of course-depend# inguligon` the relative'size iof the pinion 15,

and the. gears 38. The innerfjgears- 37,' of y thedriving` members arekrotated slrnultane-4 v ouslywith the gears 38, and being in mesh withthe stationary internal' Vgear 19,said' gears 37 travel aroundywithi'nsaidinternalf gear, whereby theispider 32, and thewheel druin`31, are i rotatedaround the stationary members 16+19, thus 'driving the"tracto-r wheel 4A45, `ata rate' of speed which is less than that of thedifferential' driving' axles 8.' i

As 'clearly shown i'nFigure "l, it'V will' be noted' that theinternal'igearmember 19` is" hel'di stationaryby lmeans of brace rods or.

pipes23, which are `adapted to be clamped .to the framework of avehicle.` It'wlijll' be seen that the speed reducing tractorr unit maybe removably attached toi practically any type of motor driven vehicleor-farm- -ing machine, andi that the double gearedl compensating drivemembers may beread#V f i ly` 'removed forreplacement, cleaning orArepairs by simply removing the outerv drumf 'closure plates 40, thus 1ob'viating` the ree movalio'lthe tractorw-heel as a wholfely v It will;of course, bel understoodv that the speed` reducing `drum mechanism maybe associa-tedV with, any' desired typel of wheel otherthan that shownand described."v 7e are furthe-r aware that numerous other dey tails ofvconstruction may be varied through a wide range. without,departingftroin ythe principlesl ofr thisginvefntion and1 we there;

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tore'.V do not purpose-'limiting the j aater'itl granted otherwise"than`necessitated byr the priorf'art; r i 2"* We claim as our inventiinr:s 1. The combination with a driving axle 'andv a wheel, of a clutchmember secured on said axle, vspeed'`reduction` gears inl said? wheel,a, sleeve said-wheelg clutch teeth integrallyformed on the innerendof-zsaid sleeve" and interitting with said? yclutch'- member, and apinion integrally formed on the outer end of said sleeve meshing withsaid speed reduction gears.

2. A tractor Wheel rim, a drum secured therein, a spider in said drum,cylindrical bearing members integrally formed 0n said spider and havingopenings therein, a nonrotatable internal gear associated With saidspider, and double gear means in each of said spider bearing members andprojecting through said openings to co-act with said internal gearwhereby a drive transmitted to said double gear means is transmittedthrough said spider and drum to said Wheel rim at a reduced rate ofspeed.

In testimony whereof We have hereunto Subscribed our names in thepresence of two subscribing Witnesses.

ALBERT E. COOK.

THOMAS VAN TUYL.

Witnesses:

FRANK A. BREMER, Jr., FRED E. PAESLER.

